From second on the grid, Miyata passed polesitter and early leader Toshiki Oyu on lap 13 of 51 and then enjoyed a relatively straightforward run to the finish, claiming a dominant 22-second win.
With Mugen’s Lawson finishing only fifth due with a strategy that backfired, Miyata overturned what had been a two-point deficit in the standings to take a 12-point lead into the final four races of the season.
When the race started, Oyu made a clean start from pole for TGM Grand Prix to retain the lead into Turn 1 from Miyata, as both Mugen’s Tomoki Nojiri and Impul’s Ryo Hirakawa both got away poorly to promote Sho Tsuboi and Lawson into third and fourth positions.
Further back, Miyata’s team-mate Giuliano Alesi lost control all by himself into Turn 5, with an innocent Yuhi Sekiguchi making contact with the TOM'S driver and picking up a broken front wing.
With Sekiguchi limping back to the pits with his front wing stuck underneath his Impul machine, the safety car was immediately deployed, neutralising the battle at the front.
Racing resumed on lap five after both Sekiguchi and Alesi retired from the race, with Oyu doing enough to hold onto his advantage from Miyata.
But as the race wore on, it became clear that Oyu was struggling for performance, giving Miyata a sniff of victory.
Source: Autosport